SQL Saturday

Technical Article

SQL Saturday #374 - Vienna, Austria

  • Article

SQL Saturday is a full-day technical conference and training event with international speakers. With over 20 sessions on SQL Server and a separate pre-con, the event is aimed at all those interested in SQL Server - from pros to beginners. This event will be on February 28, 2015, so register while space is available.

2015-02-06

6,987 reads

Technical Article

SQL Saturday #302 - Albany

  • Article

SQL Saturday is coming to Albany, NY on July 26, 2014. This is a free full day of training and networking for SQL Server professionals. This event also features a paid-for precon session with Grant Fritchey on query performance tuning. The event is soon so register while space is available.

2014-07-16

9,085 reads

Technical Article

SQL Saturday #293 Maine

  • Article

SQL Saturday is coming to Portland, Maine on June 28, 2014. Join us for a free day of SQL Server training and networking. Speakers include Grant Fritchey, Adam Machanic, and Wayne Sheffield. Register while space is available.

2014-06-17

2,498 reads

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Question of the Day

Query Plan Regressions --

For the Question of the day, I am going to go deep, but try to be more clear, as I feel like I didn't give enough info last time, leading folks to guess the wrong answer... :) For today's question:  You’re troubleshooting a performance issue on a critical stored procedure. You notice that a previously efficient query now performs a full table scan instead of an index seek. Upon investigating, you find that an NVARCHAR parameter is being compared to a VARCHAR column in the WHERE clause. What is the most likely cause of the query plan regression?

See possible answers